Two Roman walls collapsed earlier this week, and in November the House of Gladiators fell down. Authorities blame heavy rains but there’s a growing controversy over the lack of maintenance at the site.

The Roman city was buried in ash during an eruption of Mt. Vesuvius in 79 AD. The ash kept the city remarkably preserved, making it one of the world’s top archaeological treasures.

The team will study the site and give suggestions as to how to preserve it, but the investigators have made clear that it is Italy’s responsibility to do the work. The Italian government has created a task force of archaeologists, craftsmen, and architects to shore up the walls and buildings. Considering that the last conservation project at Pompeii is under investigation for mob connections, it remains to be seen how effective this new task force will be.